Over 30 Years Experience, On Site Rebuilding, Foreign And Domestic.Family owned and operated in Gary Indiana for over 30 years. We specialize in expert transmission repair for all makes and models of vehicles, foreign or domestic, automatic or manual. From seal replacement to total transmission rebuilds, we do it all!Our mechanics have over 30 years of transmission repair experience and all our work is professional and guaranteed. It is difficult to diagnose transmission problems over the phone — a thorough on-site inspection will provide you with the most accurate diagnosis. At Sons Transmissions, we have always offered free estimates as well as straightforward and honest answers to your questions. Our analysis is always done right the first time, so you will never get the run-around about your transmission problem.